Home / 619,808,053.20-855,428,103.36-470,884,113.24

Finding the Fourth Proportional to 619,808,053.20, 855,428,103.36 and 470,884,113.24

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Solution

The fourth proportional to 619,808,053.20, 855,428,103.36 and 470,884,113.24 is: 649,890,723.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,808,053.20 : 855,428,103.36 = 470,884,113.24 : x
  2. Step 2: Convert to fraction form
    619,808,053.20/855,428,103.36 = 470,884,113.24/x
  3. Step 3: Cross multiply
    619,808,053.20x = 855,428,103.36 × 470,884,113.24
  4. Step 4: Simplify right side
    619,808,053.20x = 402,807,503,891,248,704
  5. Step 5: Solve for x
    x = 402,807,503,891,248,704/619,808,053.20
  6. Step 6: Final answer
    x = 649,890,723.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.